Unclear error message when running into (some types of?) connection timeouts
When the connection times out before the response is retrieved, an Error claiming a broken XML was returned is raised.
E.g., on a slow server with a lot of entities, try
import caosdb as db
db.execute_query("FIND RECORD")
In the server, this results in a broken connection, i.e.
linkahead | 2022-12-22 09:30:07 10.3.128.2 - 127.0.0.1 10443 GET /Entity query=FIND%20RECORD 200 - 0 31192 https://localhost:8081 caosdb-pylib/0.10.1.dev0+6a91151 - _DefaultCaosDBServerConnection -
linkahead | The connection was broken. It was probably closed by the client. Reason: null
but the client shows
In [2]: db.execute_query("FIND RECORD")
Traceback (most recent call last):
File /usr/lib/python3.10/site-packages/IPython/core/interactiveshell.py:3433 in run_code
exec(code_obj, self.user_global_ns, self.user_ns)
Cell In[2], line 1
db.execute_query("FIND RECORD")
File ~/.local/lib/python3.10/site-packages/caosdb/common/models.py:4263 in execute_query
return query.execute(unique=unique,
File ~/.local/lib/python3.10/site-packages/caosdb/common/models.py:4197 in execute
http_response = connection.retrieve(
File ~/.local/lib/python3.10/site-packages/caosdb/connection/connection.py:582 in retrieve
http_response = self._http_request(method="GET", path=path, **kwargs)
File ~/.local/lib/python3.10/site-packages/caosdb/connection/connection.py:660 in _http_request
return self._retry_http_request(method=method, path=path,
File ~/.local/lib/python3.10/site-packages/caosdb/connection/connection.py:700 in _retry_http_request
_handle_response_status(http_response)
File ~/.local/lib/python3.10/site-packages/caosdb/connection/connection.py:501 in _handle_response_status
raise HTTPServerError(body=body)
File ~/.local/lib/python3.10/site-packages/caosdb/exceptions.py:86 in __init__
xml = etree.fromstring(body)
File src/lxml/etree.pyx:3237 in lxml.etree.fromstring
File src/lxml/parser.pxi:1896 in lxml.etree._parseMemoryDocument
File src/lxml/parser.pxi:1784 in lxml.etree._parseDoc
File src/lxml/parser.pxi:1141 in lxml.etree._BaseParser._parseDoc
File src/lxml/parser.pxi:615 in lxml.etree._ParserContext._handleParseResultDoc
File src/lxml/parser.pxi:725 in lxml.etree._handleParseResult
File src/lxml/parser.pxi:654 in lxml.etree._raiseParseError
File <string>:1
XMLSyntaxError: Start tag expected, '<' not found, line 1, column 1